CN101725900B - Light source device and protector using the same - Google Patents
Light source device and protector using the same Download PDFInfo
- Publication number
- CN101725900B CN101725900B CN2008103050187A CN200810305018A CN101725900B CN 101725900 B CN101725900 B CN 101725900B CN 2008103050187 A CN2008103050187 A CN 2008103050187A CN 200810305018 A CN200810305018 A CN 200810305018A CN 101725900 B CN101725900 B CN 101725900B
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- China
- Prior art keywords
- light
- reflector
- lamp
- supply apparatus
- collective optics
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- 230000001012 protector Effects 0.000 title 1
- 230000011514 reflex Effects 0.000 claims abstract 7
- 230000003287 optical effect Effects 0.000 claims abstract 6
- 230000002093 peripheral effect Effects 0.000 claims 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract 1
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/28—Reflectors in projection beam
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
A light source device comprises a first lamp, a second lamp, a reflecting element and a light-condensing element, wherein the first lamp, the reflecting element and the light-condensing element are arranged along the optical axis of the light-condensing element in sequence. The first lamp comprises a first reflex housing and a first luminotron, the first reflex housing causes the first lamp to emit parallel light. The second lamp comprises a second reflex housing and a second luminotron. The reflecting element comprises a first reflecting surface and a second reflecting surface, wherein the first reflecting surface reflects the light rays transmitted to the first reflecting surface by the first luminotron of the first lamp to the first reflex housing. The light-condensing element receives the light rays of the first lamp reflected by the first reflex housing. The second reflecting surface is arranged between the first reflecting surface and the light-condensing element, the light rays of the second lamp are incident on the second reflecting surface and are reflected to the light-condensing element through the second reflex surface, so as to prevent the waste of the light rays. The invention further provides a projector using the light source device.
Description
Technical field
The present invention relates to a kind of light supply apparatus, and a kind of projector that uses this light supply apparatus.
Background technology
In recent years, because of the market demand, the output brightness of projector constantly promotes, and the projector of therefore existing now two lamps or many lamp frames comes out.In the projector of these pairs lamp or many lamp frames, the light that light source sends is not much finally taken in the integration rod system of projector, be mapped to outside the integration rod system but disperse, thereby produce the light loss consumption, cause the light source utilization ratio not high, therefore how can better allow more rays take in the integration rod system of projector, improve the utilization ratio of light, become the problem that the producer of projector must solve.
Summary of the invention
In view of this, be necessary to provide a kind of minimizing light loss consumption, the light supply apparatus that light utilization efficiency is high and use the projector of this light supply apparatus.
A kind of light supply apparatus, it comprises first lamp, second lamp, reflecting element and collective optics, described first lamp, reflecting element, collective optics sets gradually along the optical axis of described collective optics, described first lamp comprises first reflector and first luminous tube, and make the light of the first luminous tube directive, first reflector reflect to form directional light, described second lamp comprises second reflector and second luminous tube, the described second reflector opening direction is towards described reflecting element, described second reflector can make the light of the second luminous tube directive, second reflector converge, described reflecting element comprises first reflecting surface and second reflecting surface that acutangulates setting, described first reflecting surface reflexes to the light of the first luminous tube directive, first reflecting surface of first lamp on first reflector, described collective optics receives the light of first lamp through the reflection of first reflector, and converge, described second reflecting surface is between described first reflecting surface and collective optics, the light of described second lamp incides second reflecting surface, is reflexed on this collective optics by second reflecting surface.
A kind of projector, it comprises a light supply apparatus, wherein said light supply apparatus possesses the structure of above-mentioned light supply apparatus.
Light supply apparatus provided by the invention adopts dual-lamp structure, and the light that two lamps send is focused on by collective optics at last respectively via two corresponding reflectings surface reflections of lamp.Thereby can prevent the light quantity waste, realize the low-loss of light, high usage.
Description of drawings
The structural representation of the projector that Fig. 1 provides for first embodiment of the invention.
The structural representation of the projector that Fig. 2 provides for second embodiment of the invention.
The structural representation of the projector that Fig. 3 provides for third embodiment of the invention.
The structural representation of the projector that Fig. 4 provides for four embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment one
Fig. 1 is the structural representation of the projector 1000 in the embodiment one.Comprise light supply apparatus 100, integration rod system 200, DMD element 300 and camera lens 400.Described light supply apparatus 100 comprises first lamp 10, second lamp 20, reflecting element 30, collective optics 40 and lens 50.Described first lamp 10, reflecting element 30, lens 50 and collective optics 40 set gradually along the optical axis of described collective optics 40, and described second lamp 20 departs from collective optics 40 optical axis positions between first lamp 10 and collective optics 40.
Described first lamp 10 comprises first reflector 11 and first luminous tube 12.The opening direction of described first reflector 11 is towards described collective optics 40.Described first reflector 11 can make the light of first luminous tube, 12 directives, first reflector 11 roughly be reflected into directional light.In the present embodiment, described first reflector 11 can be the parabolical reflector.
Described second lamp 20 comprises second reflector 21 and second luminous tube 22.Described second reflector, 21 opening directions are towards described reflecting element 30.Described second reflector 21 can make the light of second luminous tube, 22 directives, second reflector 21 converge.In the present embodiment, described second reflector 21 can be the elliposoidal reflector.
Described reflecting element 30 comprises first speculum 31 and second speculum 32.Described first speculum 31 and second speculum 32 acutangulate setting, the optical axis of the vertical collective optics 40 of the reflecting surface of wherein said first speculum 31, the light of first luminous tube, 12 directives, first speculum 31 of first lamp 10 can be reflexed on first reflector 11, reflect by first reflector 11 again, thereby be used.Described collective optics 40 receives the light of described first lamp 10 through 11 reflections of first reflector, and converges.Described second speculum 32 is between described first speculum 31 and lens 50, and its reflecting surface becomes an angle of inclination with the optical axis of collective optics 40, and in the present embodiment, this angle of inclination is 45 degree.The light that described second lamp 20 sends converges on the reflecting surface of described second speculum 32, makes light reflex on the described lens 50 through second speculum 32, roughly forms directional light, incides at last on the collective optics 40, focuses on through collective optics 40 then.In the present embodiment, the light that described second lamp 20 sends converge on the reflecting surface of described second speculum 32 a bit on, this convergent point is the focus of described lens 50 simultaneously.Described lens 50 are convex lens.
Described collective optics 40 converges to light in the described integration rod system 200, shines then on the DMD element 300, and 300 pairs of light of DMD element are selected modulation, are throwed away by camera lens 400 at last.
Embodiment two
Fig. 2 is the structural representation of the projector 1002 in the embodiment two, and wherein the structure of light supply apparatus 102 has similar substantially formation to embodiment one, but reflecting element is different with reflecting element in the embodiment one.
Reflecting element in the described light supply apparatus 102 is a right angle triangular prism 60.Described right angle trigonometry prism 60 comprises two vertical right angle faces and connects an inclined-plane of two right angle faces.Described right angle trigonometry prism 60 between described first lamp 10 and lens 50, one of them right angle face S vertical optical axis, inclined-plane S ' is between right angle face S and described lens 50.Described right angle face S and inclined-plane S ' are plated reflectance coating, make it can reflection ray.
The right angle face S of described right angle trigonometry prism 60 reflexes to the light of first luminous tube, the 12 directive right angle face S of first lamp 10 on first reflector 11, again by 11 reflections of first reflector, thereby is used.Described collective optics 40 receives the light of described first lamp 10 through 11 reflections of first reflector, and converges.The light that described second lamp 20 sends converges on the inclined-plane S ' reflecting surface of described right angle trigonometry prism 60, and light is reflected on the described lens 50, roughly forms directional light and incides on the collective optics 40, focuses on through collective optics 40 then.In the present embodiment, the light that described second lamp 20 sends converge on the described inclined-plane S ' reflecting surface a bit on, this convergent point is the focus of described lens 50 simultaneously.
Embodiment three
Fig. 3 is the structural representation of the projector 1004 in the embodiment three, and wherein the structure of light supply apparatus 104 has similar substantially formation to embodiment one, but different in collective optics and the embodiment one.
In the present embodiment, replace described collective optics 40 and lens 50 with a non-spherical lens 70.The radius of curvature of described non-spherical lens 70 cores is less than the radius of curvature of peripheral part, the light of described first lamp 10 is reflexed to the peripheral part of described non-spherical lens 70 by its first reflector 11, the light of described second lamp 20 is converged on second speculum 32 by its second reflector 21, reflex to the core of described non-spherical lens 70 by second speculum 32, focus on by described non-spherical lens 70.
Embodiment four
Fig. 4 is the structural representation of the projector 1006 in the embodiment four, and wherein the structure of light supply apparatus 106 has similar substantially formation to embodiment one, but different in second modulated structure and the embodiment one.
In the present embodiment, the reflector 81 of second lamp 80 makes second lamp 80 roughly penetrate parallel rays, reflector 81 in the present embodiment can be the parabolical reflector, and the reflecting surface of the caliber size of reflector 81 and second speculum 32 is suitable, make that the reflective surface area of second lamp, the 80 outgoing beam radiuses and second speculum 32 is suitable, light beam can almost all incide on second speculum 32, is reflexed on the collective optics 40 by second speculum 32 then, focuses on through collective optics 40 then.
Light supply apparatus provided by the invention adopts dual-lamp structure, and the light that two lamps send is focused on by collective optics at last respectively via two corresponding reflectings surface reflections of lamp.Thereby can prevent the light quantity waste, realize the low-loss of light, high usage.
Those skilled in the art will be appreciated that; above embodiment only is to be used for illustrating the present invention; and be not to be used as limitation of the invention; as long as within connotation scope of the present invention, appropriate change and variation that above embodiment is done all drop within the scope of protection of present invention.
Claims (17)
1. light supply apparatus, it comprises first lamp, second lamp, reflecting element and collective optics, described first lamp, reflecting element, collective optics sets gradually along the optical axis of described collective optics, described first lamp comprises first reflector and first luminous tube, and make the light of the first luminous tube directive, first reflector reflect to form directional light, described second lamp comprises second reflector and second luminous tube, the described second reflector opening direction is towards described reflecting element, described second reflector can make the light of the second luminous tube directive, second reflector converge, described reflecting element comprises first reflecting surface and second reflecting surface that acutangulates setting, described first reflecting surface reflexes to the light of the first luminous tube directive, first reflecting surface of first lamp on first reflector, described collective optics receives the light of first lamp through the reflection of first reflector, and converge, described second reflecting surface is between described first reflecting surface and collective optics, the light of described second lamp incides second reflecting surface, is reflexed on this collective optics by second reflecting surface.
2. light supply apparatus as claimed in claim 1 is characterized in that, described first reflector is the parabolical reflector.
3. light supply apparatus as claimed in claim 1 is characterized in that the opening direction of described first reflector is towards described collective optics.
4. light supply apparatus as claimed in claim 1 is characterized in that, described second lamp departs from the collective optics optical axis position between first lamp and collective optics.
5. light supply apparatus as claimed in claim 1 is characterized in that, described second reflector converges the light of the second luminous tube directive, second reflector.
6. light supply apparatus as claimed in claim 1 is characterized in that, described second reflector is the elliposoidal reflector.
7. light supply apparatus as claimed in claim 1 is characterized in that the opening direction of described second reflector is towards described reflecting element.
8. light supply apparatus as claimed in claim 1 is characterized in that, described second reflector makes the light of the second luminous tube directive, second reflector reflect to form almost parallel light.
9. light supply apparatus as claimed in claim 1 is characterized in that, described second reflector is the parabolical reflector, and the reflective surface area of the second reflector caliber size and described second reflecting surface is suitable.
10. light supply apparatus as claimed in claim 1, it is characterized in that, described reflecting element is two speculums, the optical axis of the vertical collective optics of reflecting surface of first speculum wherein, the light of the first luminous tube directive, first speculum of described first lamp is reflexed on first reflector, the reflecting surface of second speculum and the optical axis of collective optics will incide the light reflection of second lamp on second speculum at angle.
11. light supply apparatus as claimed in claim 1, it is characterized in that, described reflecting element is the right angle trigonometry prism, described right angle trigonometry prism comprises two vertical right angle faces and connects an inclined-plane of two right angle faces, the optical axis of the vertical collective optics of one of them right angle face, the inclined-plane wherein is coated with reflectance coating on two right angle faces and the inclined-plane between right angle face and described collective optics.
12. light supply apparatus as claimed in claim 1 is characterized in that, described collective optics is convex lens.
13. light supply apparatus as claimed in claim 1 is characterized in that, described collective optics is a non-spherical lens.
14. light supply apparatus as claimed in claim 13, it is characterized in that, the radius of curvature of described non-spherical lens core is less than the radius of curvature of peripheral part, the light of described first lamp is reflexed to the peripheral part of described non-spherical lens by its first reflector, the light of described second lamp is converged on second speculum by its second reflector, by the core of second mirror reflects, focus on by described non-spherical lens to described non-spherical lens.
15. light supply apparatus as claimed in claim 1 is characterized in that, on the light path of described second lamp, also comprises lens between reflecting element and collective optics, it is used to make the light of second lamp to form directional light.
16. light supply apparatus as claimed in claim 15 is characterized in that, described lens are convex lens.
17. a projector, it comprises a light supply apparatus, it is characterized in that, described light supply apparatus possesses the structure of any one described light supply apparatus in the claim 1～16.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103050187A CN101725900B (en) | 2008-10-20 | 2008-10-20 | Light source device and protector using the same |
| US12/417,614 US8066388B2 (en) | 2008-10-20 | 2009-04-02 | Light source device and projector having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103050187A CN101725900B (en) | 2008-10-20 | 2008-10-20 | Light source device and protector using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101725900A CN101725900A (en) | 2010-06-09 |
| CN101725900B true CN101725900B (en) | 2011-09-28 |
Family
ID=42108384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008103050187A Expired - Fee Related CN101725900B (en) | 2008-10-20 | 2008-10-20 | Light source device and protector using the same |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US8066388B2 (en) |
| CN (1) | CN101725900B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2154567B1 (en) * | 2007-06-21 | 2013-08-14 | Panasonic Corporation | Light source device and projection display device using the same |
| US8646947B2 (en) * | 2011-06-29 | 2014-02-11 | Appotronics Corporation Limited | Multicolor illumination device using multiple light sources and a moving plate with wavelength conversion materials |
| US9096291B2 (en) | 2011-09-12 | 2015-08-04 | Commercial Sewing, Inc. | Stowable bimini top |
| CN106131520B (en) * | 2016-06-27 | 2019-08-27 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN111812934A (en) * | 2020-08-31 | 2020-10-23 | 南阳南方智能光电有限公司 | Single right-angle prism LED micro projection lighting system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0671854A1 (en) * | 1994-03-09 | 1995-09-13 | Daewoo Electronics Co., Ltd | Optical projection system |
| CN1248718A (en) * | 1998-09-23 | 2000-03-29 | 明碁电脑股份有限公司 | Projection display device |
| CN1387068A (en) * | 2001-05-18 | 2002-12-25 | 大亿科技股份有限公司 | Display device with a light collection module of a spherical reflector |
| CN101142524A (en) * | 2005-03-16 | 2008-03-12 | 松下电器产业株式会社 | image projector |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000065399A2 (en) * | 1999-04-23 | 2000-11-02 | Koninklijke Philips Electronics N.V. | Projection system |
| US6488379B2 (en) * | 2001-04-13 | 2002-12-03 | Phillips Electronics | Video projector illumination system using two lamps having complementary beams patterns |
| JP2007086302A (en) * | 2005-09-21 | 2007-04-05 | Konica Minolta Opto Inc | Image projecting device having variable diaphragm |
| GB0619943D0 (en) * | 2006-10-09 | 2006-11-15 | Digital Projection Ltd | Light source |
-
2008
- 2008-10-20 CN CN2008103050187A patent/CN101725900B/en not_active Expired - Fee Related
-
2009
- 2009-04-02 US US12/417,614 patent/US8066388B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0671854A1 (en) * | 1994-03-09 | 1995-09-13 | Daewoo Electronics Co., Ltd | Optical projection system |
| CN1144027A (en) * | 1994-03-09 | 1997-02-26 | 大宇电子株式会社 | Optical projection system |
| CN1248718A (en) * | 1998-09-23 | 2000-03-29 | 明碁电脑股份有限公司 | Projection display device |
| CN1387068A (en) * | 2001-05-18 | 2002-12-25 | 大亿科技股份有限公司 | Display device with a light collection module of a spherical reflector |
| CN101142524A (en) * | 2005-03-16 | 2008-03-12 | 松下电器产业株式会社 | image projector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101725900A (en) | 2010-06-09 |
| US8066388B2 (en) | 2011-11-29 |
| US20100097578A1 (en) | 2010-04-22 |
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Granted publication date: 20110928 Termination date: 20151020 |
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| EXPY | Termination of patent right or utility model |